Nlm online users meeting may 21 2007
Download
1 / 100

NLM Online Users Meeting - PowerPoint PPT Presentation


  • 491 Views
  • Uploaded on

NLM Online Users Meeting May 21, 2007 David Gillikin Chief, Bibliographic Service Division National Library of Medicine National Institutes of Health Department of Health & Human Services Presentations David Gillikin, Online Update Joyce Backus, MedlinePlus Maria Collins, DOCLINE

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'NLM Online Users Meeting' - adamdaniel


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Nlm online users meeting may 21 2007 l.jpg

NLM Online Users MeetingMay 21, 2007

David Gillikin

Chief, Bibliographic Service Division

National Library of Medicine

National Institutes of Health

Department of Health & Human Services


Presentations l.jpg
Presentations

  • David Gillikin, Online Update

  • Joyce Backus, MedlinePlus

  • Maria Collins, DOCLINE

  • Questions


Indexing l.jpg
Indexing

  • FY2006

    • 629,000 indexed citations added to MEDLINE.

    • Highest ever indexing rate (last year was 606,596 indexed citations).

    • 46,918 gene indexing links created (4% increase from last year).

  • FY2007

    • 175,177 citations indexed in during the 2nd quarter, at a rate of over 700,000 articles per year.

    • More than 85% of MEDLINE citations now supplied electronically by publishers.


Indexing4 l.jpg
Indexing

  • New Web-based training program for MEDLINE indexing is the primary instruction method for new indexers.

  • A version for end-user access to be provided by early summer.


Indexing5 l.jpg
Indexing

  • Electronic Journal Indexing

    • 120 online-only journals indexed for MEDLINE, an increase from 107 a year ago.

    • 276 additional journals - the online version is indexed instead of the print version.


Indexing6 l.jpg
Indexing

  • Kennedy Institute of Ethics (KIE) - Bioethics data:

    • NLM supplies over 85% of the bioethics citations creation and indexing.

    • Contract reduction due to budgetary constraints.

    • NLM continues to provide funding to support the National Reference Center for Bioethics Literature at KIE; it offers search systems and other services for bioethics literature and their own collection.


Bioethics information resources l.jpg
Bioethics Information Resources

  • Web resource developed to provide additional support to the subject of bioethics.

  • www.nlm.nih.gov/bsd/bioethics.html

  • Main links on:

    • PubMed Special Queries page.

    • List of NLM Databases and Resources on the NLM Home page.


Oldmedline l.jpg
OLDMEDLINE

  • Mapping OLDMEDLINE Keywords to current MeSH:

    • 76% of citations mapped completely (over 1.34 million citations).

    • These completed records are now converted to the status [PubMed – Indexed for MEDLINE].

    • Work continues on mapping the additional keywords.

  • Conversion of the citations from the 1949 Current List of Medical Literature (CLML) has begun.


Pubmed l.jpg
PubMed

  • PubMed – surpassed 17 million records

  • MEDLINE – over 15.8 million (93%)

  • In Process records – over 252,000 (1.5%)

  • OLDMEDLINE – over 420,000 (2.5%)

  • PubMed-only records – over 524,000 (3%)


Pubmed12 l.jpg
PubMed

  • Usage continues to grow

    • Searches by Unique IPs

      • March 2006 : Nearly 9.8 million unique IPs

      • March 2007: Nearly 11.8 million unique IPs

    • Total number of searches

      • March 2006: Over 82.0 million searches

      • March 2007: Over 82.3 million searches

    • Page views

      • March 2006: Over 377 million page views

      • March 2007: Over 423 million page views


Pubmed enhancements l.jpg
PubMed Enhancements

  • New version of the Entrez system being developed.

  • Beta version made available for review this spring.

  • New system to be coming online soon.

  • Foundation for the next generation of features and capabilities on Entrez databases, including PubMed.


Pubmed enhancements14 l.jpg
PubMed Enhancements

  • AbstractPlus view

    • New default view

    • Single citation display – customizable selection using My NCBI

    • Library icons

      • New system version displays a single library icon in upper right hand corner – different size (100 pixels x 25 pixels)

      • If users activate more than one icon, the icon displayed at the top will be selected according to the following priority:

        • Library LinkOut full text icon

        • Library LinkOut print icon

        • Outside Tool icon


Abstractplus beta view l.jpg
AbstractPlus – Beta View


Pubmed central l.jpg
PubMed Central

  • Number of unique IPs searching PMC:

    • Tremendous growth in searching.

    • April = 4,290,400.

    • March = 3,290,615.

  • Statistics as of May 1:

    • 331 journals participating in PMC (249 last year).

    • Covering over 969,278 articles (675,00 last year).

    • Announcements of new PMC titles and coverage appear regularly in the NLM Technical Bulletin.


Pmc scanning project l.jpg
PMC Scanning Project

  • Journal Back Issues loaded to PubMed.

    • 39 Completed Journals and growing.

    • 70,231 total citations added.

    • From journals such as PNAS, Plant Physiology, Journal of Physiology, Journal of Clinical Pathology, and Journal of Anatomy

  • Next step, adding abstracts found in PMC citations not found in PubMed Citations.


Pmc scanning project18 l.jpg
PMC Scanning Project

  • From the 38 completed PMC back issue scanned titles:

    • 40,640 new abstracts added from 23 titles.

    • 15 titles did not have new abstracts to add.

  • Process now part of standard workflow for PMC scanned citations to be included in MEDLINE/PubMed.


3 rd party back issue citations l.jpg
3rd Party Back Issue Citations

  • Publisher requests to include their retrospective data.

  • Goal:

    • Load citations for journal issues not previously included in MEDLINE/PubMed.

    • New citations published from 1966 and up will be put into MEDLINE format.

    • These citations will not be indexed with MeSH.

    • Also, add abstracts from Publisher citations that are not found in MEDLINE citations.

  • Slow process, dependent upon QA testing and review.


Linkout l.jpg
LinkOut

  • 5,772 journals with LinkOut links.

  • Activity: 26 million hits/month; 1.1million per work day

  • PubMed Citations:

    • 47.8% have full text links.

    • 10.3% have free full text links.

  • PubMed citations from 1999 on:

    • 82.5% have full text links.

    • 17.8% have free full text links.

  • LinkOut for Libraries program

    • 1,733 Libraries participating as of May 8.

    • 1,485 reported at this time last year.



Ncbi genetic alliance web resource l.jpg
NCBI / Genetic Alliance Web Resource

  • New Web site feature on www.geneticalliance.org site.

  • Accessed through the “Disease InfoSearch” feature.

  • Designed to help patients, care givers, and health professionals easily locate & navigate information on genetic disorders.



Gateway l.jpg
Gateway

  • Added access to a new collection: Profiles in Science

  • Now searches 23 collections

  • Meeting Abstracts: Added abstracts from 2 Health Technology Assessment International Meetings

  • HSRProj: updates bring total number of records to >7,300


Medical subject headings mesh l.jpg
Medical Subject Headings (MeSH)

  • Follow up on MeSH Subheading Consolidation Proposal:

    • NLM analyzed all comments, suggestions and feedback.

    • Considered the potential impact on the searching public, Network libraries and internal NLM processes.

  • Decision to retain the current subheadings in their present form was announced in January 2007.


Training l.jpg
Training

  • National Training Center & Clearinghouse (NTCC) 5-year contract was awarded last year to the New York Academy of Medicine.

  • Over 1,100 users have taken our training courses throughout the country, covering PubMed, Gateway, ClinicalTrials.gov, TOXNET, UMLS.

  • PubMed Tutorial updated twice.

  • Two new QuickTours on using My NCBI have been added.


Training27 l.jpg
Training

  • MEDLINE / PubMed Resources Guide

    • Detailed information about MEDLINE data and searching PubMed.

    • Includes sources for news, overviews, data structure and variables, statistics, training resources and more.

    • Link found under the “Especially for Librarians” on the NLM home page, and on the Bibliographic Services Division home page.


Training29 l.jpg
Training

  • NLM Theater

    • Over 14 NLM products and services are being discussed and demonstrated.

    • Experimenting with recording the theater presentations with Adobe Connect, and posting them on the NLM Web site along with the PowerPoint slides.

  • Working with NTCC to develop live online clinics on using NLM products and services

    • Beginning in August – brief session on searching for chemicals and drugs in PubMed


Nlm technical bulletin l.jpg
NLM Technical Bulletin

  • Usage:

    • Over 500 visits per day.

    • Nearly 1,500 page views per day.

  • New List of the indexes:

    • Chronological list.

    • “Articles About” lists:

      • PubMed.

      • GateWay.

      • Environmental Health and Toxicology – new entry.

  • Sign-up for weekly NLM Announces email or for the RSS feed of the Technical Bulletin.


Technical services division l.jpg
Technical Services Division

  • 2007 edition of the NLM Classification available April 2006.

    • Online version (wwwcf.nlm.nih.gov/class/).

    • PDF version (www.nlm.nih.gov/class/terms_cond.html).

    • Includes revised animated tutorial (Quick Tour) on searching.

  • Title abbreviations (TAs)

    • Now accepting the title abbreviations assigned by the International Standard Serial Number (ISSN) Centre.

    • TAs modified to match NLM formatting/style (punctuation, capitalization).


Data distribution l.jpg
Data Distribution

  • Data distribution program continues to grow, with research areas in academics, biotech, and software development companies leading the way.

  • Over 436 MEDLINE licensees in FY2006.

  • 153 Non-USA licensees.


Unified medical language system umls l.jpg
Unified Medical Language System (UMLS)

  • 4 UMLS releases in 2006:

    • 2006AA released February 13

    • 2006AB released May 8.

    • 2006AC released July 14.

    • 2006AD released November 2.

  • 3 releases planned for 2007; 2007AA released January 1.


Unified medical language system umls34 l.jpg
Unified Medical Language System (UMLS)

  • New SNOMED CT licensing agreement put into place on April 26, 2007.

  • Transfer of ownership of SNOMED CT to the new International Health Terminology Standards Development Organisation (IHTSDO).

  • NLM is the U.S. member and founding member of IHTSDO.


Dailymed l.jpg
DailyMed

  • http://dailymed.nlm.nih.gov/

  • Provides high quality information about marketed drugs.

  • Includes FDA approved labels (package inserts).

  • 2,629 approved prescription drugs included in the database.


Specialized information services sis l.jpg
Specialized Information Services (SIS)

  • TOXLINE Unified - Search results from TOXLINE Core & TOXLINE Special merged (August 2006).

  • TOX MAP:

    • Enhanced, more accurate map presentations.

    • Improved location data using enhanced data from EPA.

    • Includes 2005 Toxics Release Inventory (TRI) data.

  • ToxMystery launched – interactive learning site for 7–10 year olds (October 2006).

  • WISER 2.3 released (December 2006).

  • ToxSeek updated with an enhanced meta-search engine and clustering tool (March 2007).


Lstrc accepted journals l.jpg
LSTRC Accepted Journals

  • Literature Selection Technical Review Committee (LSTRC) – reviews new titles for inclusion in MEDLINE.

  • New Web page identifying selected titles:

    www.nlm.nih.gov/bsd/lstrc/new_titles.html

  • Link on BSD web page.

  • Updated roughly 4-6 weeks after LSTRC meeting.


Thank you l.jpg
Thank you!

Please stop by the NLM booth

and let us know what you think,

what you like, what you don’t like,

and what we can do better.


Nlm online users meeting may 21 200740 l.jpg

NLM Online Users MeetingMay 21, 2007

Joyce Backus

Deputy Chief, Public Services Division

National Library of Medicine

National Institutes of Health

Department of Health & Human Services


Medlineplus update l.jpg
MedlinePlus Update

  • Where in the world is MedlinePlus?

  • What’s new? – health topic pages

  • NIHSeniorHealth - new topics and videos

  • What’s coming? – RSS and search


Medlineplus today l.jpg

Health topics:

740 English (19,000 links)

704 Spanish (5,500 links)

Interactive tutorials: 175

Drug database and herbals & supplements database: approx 1000 monographs

Links to ClinicalTrials.gov 776

NIHSeniorhealth: 31 topics

Encyclopedia: approx 3700 articles; 2300 images

Surgeries: 148 videos

One weekly podcast

Health news: Approx 15-20 stories per day

Dictionary

Magazine:4 issues

GoLocal: 21 sites

Directories: Over 100 directories of doctors, hospitals, clinics and libraries.

Email lists: 11 daily & weekly

MedlinePlus Today


Medlineplus en espa ol l.jpg
MedlinePlusen español

Health topics:

740 English (19,000 links)

704 Spanish (5,500 links)

Drug database and herbals & supplements database: approx 1000 monographs

Health news: Approx 15-20 stories per day

Encyclopedia: approx 3700 articles; 2300 images

Surgeries

Email lists: daily & weekly

Interactive tutorials: 175


Where in the world is medlineplus l.jpg
Where in the world is MedlinePlus?

  • Where in the finding information world?

  • Where in the consumer health information world?

  • Where in the dot-gov web world?

  • And, how do we know?



Slide47 l.jpg

Where in the information seeking world?

h

Source: http://pewresearch.org/pubs/460/wikipedia


Slide48 l.jpg

Where in the health information world?

Source: Media Metrix/ Comscore


Slide49 l.jpg

Where in the dot-gov information world?

Source: Media Metrix/ Comscore


Where in the world do they come from l.jpg
Where in the world do they come from?

Source: NLM WebTrends data Jan 07


Slide51 l.jpg

Where in the world? – geography

Source: NLM WebTrends data Jan 07



Slide53 l.jpg

MedlinePlus Go Local – May 2007 NLM WebTrends data Jan 07

Insert new map here

21 Go Local sites


Introducing l.jpg
Introducing… NLM WebTrends data Jan 07

  • New Go Local projects - May ’06- May ’07

    • Louisiana - Oct ’06

    • Illinois - Nov ’06

    • Tennessee - Jan ’07

    • Montana - Feb ’07

    • Texas – central - Feb ’07

    • Arkansas – Mar ’07


Medlineplus go local future l.jpg
MedlinePlus Go Local – Future NLM WebTrends data Jan 07

Insert new map here

29 Go Local sites


Health topics homepage 1998 l.jpg
Health Topics Homepage – 1998 NLM WebTrends data Jan 07


Slide57 l.jpg

Health topics page - 1999 NLM WebTrends data Jan 07


Slide58 l.jpg

Health topics page - 2001 NLM WebTrends data Jan 07


Slide59 l.jpg

Health topic page – 2000 NLM WebTrends data Jan 07


Slide60 l.jpg

Health topic page - 2001 NLM WebTrends data Jan 07


Slide61 l.jpg


Nihseniorhealth update l.jpg
NIHSeniorHealth Update NLM WebTrends data Jan 07

  • Flash Video

  • New topics

  • New home page


Slide67 l.jpg

New banner NLM WebTrends data Jan 07

Status bar indicates total length of video and current progress

Slider for fast

forwarding

and rewinding

Volume slider

Closes the video window

Play starts and

pauses the video

Transcript opens the captioning

text in a separate window

Restarts video from the beginning


New topics since may 2006 l.jpg

New Topics (Since May 2006) NLM WebTrends data Jan 07

  • Five new topics (32 total):

  • Heart Attack (NHLBI)

  • Paget's Disease of Bone (NIAMS)

  • High Blood Pressure (NHLBI)

  • Falls and Older Adults (NIA)

  • Depression (NIMH)

  • Skin Cancer (NCI)


Nihseniorhealth homepage l.jpg
NIHSeniorHealth Homepage NLM WebTrends data Jan 07

or


Usability testing april 2007 l.jpg

Usability NLM WebTrends data Jan 07 Testing (April 2007)

  • New homepage options

  • Making room for more topics by using category pages on homepage

  • More linking to MedlinePlus (from category pages)

  • Implement – Fall 2007


What s coming rss feeds l.jpg
What’s coming – RSS feeds NLM WebTrends data Jan 07

  • Released this week

    • Health stories from Healthday

    • Weekdays

  • Future RSS

    • New links, pages


What s coming new search software l.jpg
What’s coming - New search software NLM WebTrends data Jan 07

  • Vivisimo search

  • Summer 2007

    • MedlinePlus

    • NLM Main Web site

    • MedlinePlus en español

  • New features

    • Push results based on search

    • Highlight best content on search page


Medlineplus nihseniorhealth search l.jpg
MedlinePlus, NIHSeniorHealth, Search NLM WebTrends data Jan 07

Send us your comments –

“Contact Us” on every page


Interlibrary loan patterns in docline fiscal year 2005 l.jpg

Interlibrary Loan Patterns in DOCLINE NLM WebTrends data Jan 07Fiscal Year 2005

Medical Library Association 2007

Philadelphia, PA

Maria Elizabeth Collins

National Library of Medicine

National Institutes of Health / HHS


Scope of journal use study l.jpg
Scope of Journal Use Study NLM WebTrends data Jan 07

  • FY 2005: Oct 1, 2004 – Sept 30, 2005

  • Journal title use by biomedical libraries

  • Journal article use

  • Use through interlibrary loan only

    • Not use within the library

    • Not personal subscriptions


Docline l.jpg
DOCLINE NLM WebTrends data Jan 07

  • ILL request routing and referral system

  • Launched in 1985

  • 3,234 libraries participating in 2005

    • 2,861 US libraries

    • 325 Canadian libraries

    • 48 international libraries

  • 2.48 million requests in FY2005

  • Fill rate: 91.2%

  • Average number of routes to complete ILL: 1.2


Type of libraries l.jpg
Type of Libraries NLM WebTrends data Jan 07

(Federal and special libraries)


Ill requests l.jpg
ILL Requests NLM WebTrends data Jan 07


Pubmed searches l.jpg
PubMed Searches NLM WebTrends data Jan 07

Millions of Searches


Pubmed searching vs ill requests l.jpg
PubMed Searching vs. ILL Requests NLM WebTrends data Jan 07

Millions of Searches

Millions of ILL Requests


Methodology l.jpg
Methodology NLM WebTrends data Jan 07

  • ILL transaction data from DOCLINE

  • 2.22 million filled article requests analyzed

  • Supplemental journal and article bibliographic data from:

    • NLM citation system for PubMed – DCMS

    • NLM ILS – Voyager

    • NLM Serials Extract File - SEF

  • Summary data downloaded to Microsoft Excel to produce charts and graphs


All docline requests l.jpg
All DOCLINE Requests NLM WebTrends data Jan 07

Total: 2.48 million requests


Serials l.jpg
Serials NLM WebTrends data Jan 07

  • 124,000 serial titles in NLM’s catalog

    • 26,000 serial titles held only in Network libraries (not at NLM)

  • 44,680 are currently published serials that are likely to have articles

  • 3,065 libraries reporting holdings

  • 1,440,878 serial holdings reported


Journal title use l.jpg
Journal Title Use NLM WebTrends data Jan 07

21,258 Journal titles used

10 or fewer times:

2005: 60%

1992: 58%


Top requested journal titles l.jpg
Top Requested Journal Titles NLM WebTrends data Jan 07

  • New England Journal of Medicine 1928 - 6,556

  • JAMA1896- 6,320

  • Obstetrics and Gynecology 1953- 6,000

  • Nursing Times1905 - 5,379

  • Lancet 1823 - 5,264

  • Academic Emergency Medicine 1994 - 5,155

  • Obesity Surgery 1991 - 5,118

  • Clinical Orthopaedics and Related Research 1963- 5,084

  • Annals of the New York Academy of Sciences1877 - 4,820

  • Spine1976 - 4,777

  • American Journal of Obstetrics and Gynecology 1920 - 4,146

  • Annals of Pharmacotherapy 1992 - 4,047

  • Expert Opinion on Pharmacotherapy 1999 - 3,971

  • Journal of Clinical Psychiatry 1978 - 3,962

  • Journal of Advanced Nursing1976 - 3,938


New england journal of medicine l.jpg
New England Journal of Medicine NLM WebTrends data Jan 07

  • Owned by 2,745 libraries

  • Requested 6,556 times

  • Requested by 1,475 different libraries

    • 1,301 of these libraries own the title (88%)

  • Filled 6,208 times

  • Filled by 1,382 different libraries

  • Why ordering: Lacking the issue


Nejm requests by pub year l.jpg

2005: 505 NLM WebTrends data Jan 077.70%

2004: 592 9.03%

2003: 110 1.68%

2002: 105 1.60%

2001: 104 1.59%

2000: 88 1.34%

1999: 60 0.92%

1998: 54 0.82%

1997: 45 0.69%

1996: 78 1.19%

1995: 49 0.75%

1994: 108 1.65%

1993: 103 1.57%

1992: 289 4.41%

1991: 373 5.69%

1990: 190 2.90%

1989: 254 3.87%

1988: 227 3.46%

1987: 169 2.58%

1986: 209 3.19% 57%

NEJM: Requests by Pub Year


Journal titles requests not filled l.jpg
Journal Titles – Requests Not Filled NLM WebTrends data Jan 07

  • Scientific World Journal (e)2000- 574

  • Studies in Health Technology and Informatics 1991- 379

  • CNS Spectrums 1996- 318

  • Methods in Molecular Medicine 1996- 316

  • Expert Opinion in Pharmacotherapy 1999- 314

  • Annals of the New York Academy of Sciences 1877- 279

  • Current Drug Targets. Inflammation and Allergy 2002- 265

  • Asia Pacific Journal of Clinical Nutrition 1992- 256

  • Expert Review of Anti-Infective Therapy 2003- 251

  • Expert Review of Cardiovascular Therapy 2003- 220

  • Surgical Technology International 1991- 219

  • Clinical Gastroenterology and Hepatology 2003- 211

  • Methods in Molecular Biology (NJ) 1984- 207

  • Advance for Nurse Practitioners 1993- 203

  • American Journal of Clinical Pathology 1931- 200


Journals cited in pubmed l.jpg
Journals Cited in PubMed NLM WebTrends data Jan 07

  • 2,225,350 filled requests analyzed

  • 1,991,073 requests for articles in PubMed

    • 89.4% filled articles cited in PubMed

  • 21,258 journal titles used to fill requests

  • 9,966 of those titles are cited in PubMed


Individual article use l.jpg
Individual Article Use NLM WebTrends data Jan 07

>100

47 articles

< 1%

1.03 million articles used once - 73.6%

1.4 million articles used to fill 2.22 million requests


Date distribution of article requests l.jpg
Date Distribution of Article Requests NLM WebTrends data Jan 07

47.4% older than 5 years


Date distribution comparison l.jpg

FY 2005 NLM WebTrends data Jan 07

25 years: 95.1%

10 years: 72.7%

5 years: 52.5%

FY 1992

25 years: 95%

10 years: 85%

5 years: 67%

Date Distribution Comparison

New England Journal of Medicine 20 years: 57%


Other characteristics of articles l.jpg
Other Characteristics of Articles NLM WebTrends data Jan 07

  • PubMed

    • 89.4% of articles supplied were cited in PubMed

  • Language

    • 94.3% were from English language journals

    • 2.7% were from journals that contained no English articles

  • Publication

    • 89.9% were from journals that are currently published


Journals with articles filled 100 times l.jpg

Fertility and sterility (2 articles) NLM WebTrends data Jan 07

Obstetrical & gynecological survey

Journal of the American College of Cardiology

Annals of surgery

Academic emergency medicine (4 articles)

Journal of critical care

Journal of ultrasound in medicine

Seminars in reproductive medicine

Endocrine practice (2 articles)

Obstetrics and gynecology (20 articles)

Resuscitation (2 articles)

Treatment guidelines from the Medical Letter

Journal of emergency Medicine

American journal of obstetrics and gynecology (5 articles)

Nature Medicine

Journal of psychiatric research

Human reproduction

Lancet

Journals with articles filled > 100 times


In summary l.jpg
In Summary NLM WebTrends data Jan 07

  • Volume of ILL has not increased over 1992, with a peak of 3 million in 2002

  • Use of PubMed increased from 30 million searches per year in 1997 to over 2 million per day in 2005

  • In 2005, Medical Libraries:

    • Filled 2.22 million ILL requests

    • Used 21,258 different titles

    • Used 1.4 million different articles


Articles used to fill l.jpg
Articles Used to Fill NLM WebTrends data Jan 07

  • 73.6% were used only once

  • 97% used 5 or fewer times

  • 47 articles were used > 100 times

  • 89.4% are cited in PubMed

  • 52.6% published within latest 5 years

  • Most articles requested are English language


More information l.jpg
More Information NLM WebTrends data Jan 07

  • Study published in the Journal of Medical Library Association

    • J Med Libr Assoc. 2007 April; 95(2): 189–194.

  • Full-text available in PubMed Central


Questions l.jpg
Questions NLM WebTrends data Jan 07


ad